Steve Karg
472 lines
17 KiB
C
472 lines
17 KiB
C
/**
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* @file
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* @brief command line tool that uses BACnet WriteProperty service
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* message to write object property values to another device on
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* the network and prints an acknowledgment or error response of
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* this confirmed service request. This is useful for testing
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* the WriteProperty service.
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* @author Steve Karg <skarg@users.sourceforge.net>
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* @date 2006-2007
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* @copyright SPDX-License-Identifier: MIT
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h> /* for time */
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#include <string.h>
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#include <errno.h>
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#include <ctype.h> /* toupper */
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/* BACnet Stack defines - first */
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#include "bacnet/bacdef.h"
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/* BACnet Stack API */
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#include "bacnet/bactext.h"
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#include "bacnet/iam.h"
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#include "bacnet/arf.h"
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#include "bacnet/npdu.h"
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#include "bacnet/apdu.h"
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#include "bacnet/whois.h"
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#include "bacnet/version.h"
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/* some demo stuff needed */
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#include "bacnet/basic/binding/address.h"
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#include "bacnet/basic/object/device.h"
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#include "bacnet/datalink/datalink.h"
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#include "bacnet/basic/sys/filename.h"
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#include "bacnet/basic/services.h"
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#include "bacnet/basic/tsm/tsm.h"
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#include "bacnet/datalink/dlenv.h"
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#include "bacport.h"
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#ifndef MAX_PROPERTY_VALUES
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#define MAX_PROPERTY_VALUES 64
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#endif
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#if BACNET_SVC_SERVER
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#error "App requires server-only features disabled! Set BACNET_SVC_SERVER=0"
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#endif
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/* buffer used for receive */
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static uint8_t Rx_Buf[MAX_MPDU] = { 0 };
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/* global variables used in this file */
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static uint32_t Target_Device_Object_Instance = BACNET_MAX_INSTANCE;
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static uint32_t Target_Object_Instance = BACNET_MAX_INSTANCE;
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static BACNET_OBJECT_TYPE Target_Object_Type = OBJECT_ANALOG_INPUT;
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static BACNET_PROPERTY_ID Target_Object_Property = PROP_ACKED_TRANSITIONS;
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/* array index value or BACNET_ARRAY_ALL */
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static int32_t Target_Object_Property_Index = BACNET_ARRAY_ALL;
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static BACNET_APPLICATION_DATA_VALUE
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Target_Object_Property_Value[MAX_PROPERTY_VALUES];
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/* 0 if not set, 1..16 if set */
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static uint8_t Target_Object_Property_Priority = 0;
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/* needed to filter incoming messages */
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static uint8_t Request_Invoke_ID = 0;
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static BACNET_ADDRESS Target_Address;
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/* needed for return value of main application */
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static bool Error_Detected = false;
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static void MyErrorHandler(BACNET_ADDRESS *src,
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uint8_t invoke_id,
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BACNET_ERROR_CLASS error_class,
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BACNET_ERROR_CODE error_code)
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{
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if (address_match(&Target_Address, src) &&
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(invoke_id == Request_Invoke_ID)) {
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printf("BACnet Error: %s: %s\n",
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bactext_error_class_name((int)error_class),
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bactext_error_code_name((int)error_code));
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Error_Detected = true;
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}
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}
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static void MyAbortHandler(
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BACNET_ADDRESS *src, uint8_t invoke_id, uint8_t abort_reason, bool server)
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{
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(void)server;
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if (address_match(&Target_Address, src) &&
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(invoke_id == Request_Invoke_ID)) {
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printf(
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"BACnet Abort: %s\n", bactext_abort_reason_name((int)abort_reason));
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Error_Detected = true;
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}
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}
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static void MyRejectHandler(
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BACNET_ADDRESS *src, uint8_t invoke_id, uint8_t reject_reason)
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{
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if (address_match(&Target_Address, src) &&
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(invoke_id == Request_Invoke_ID)) {
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printf("BACnet Reject: %s\n",
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bactext_reject_reason_name((int)reject_reason));
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Error_Detected = true;
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}
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}
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static void MyWritePropertySimpleAckHandler(
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BACNET_ADDRESS *src, uint8_t invoke_id)
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{
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if (address_match(&Target_Address, src) &&
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(invoke_id == Request_Invoke_ID)) {
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printf("\nWriteProperty Acknowledged!\n");
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}
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}
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static void Init_Service_Handlers(void)
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{
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Device_Init(NULL);
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/* we need to handle who-is
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to support dynamic device binding to us */
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apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is);
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/* handle i-am to support binding to other devices */
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apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_I_AM, handler_i_am_bind);
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/* set the handler for all the services we don't implement
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It is required to send the proper reject message... */
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apdu_set_unrecognized_service_handler_handler(handler_unrecognized_service);
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/* we must implement read property - it's required! */
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apdu_set_confirmed_handler(
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SERVICE_CONFIRMED_READ_PROPERTY, handler_read_property);
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/* handle the ack coming back */
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apdu_set_confirmed_simple_ack_handler(
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SERVICE_CONFIRMED_WRITE_PROPERTY, MyWritePropertySimpleAckHandler);
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/* handle any errors coming back */
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apdu_set_error_handler(SERVICE_CONFIRMED_WRITE_PROPERTY, MyErrorHandler);
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apdu_set_abort_handler(MyAbortHandler);
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apdu_set_reject_handler(MyRejectHandler);
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}
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static void print_usage(char *filename)
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{
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printf("Usage: %s device-instance object-type object-instance "
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"property priority index tag value [tag value...]\n",
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filename);
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}
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static void print_help(char *filename)
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{
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printf(
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"device-instance:\n"
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"BACnet Device Object Instance number that you are trying to\n"
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"communicate to. This number will be used to try and bind with\n"
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"the device using Who-Is and I-Am services. For example, if you were\n"
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"writing to Device Object 123, the device-instance would be 123.\n");
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printf("\n");
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printf(
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"object-type:\n"
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"The object type is object that you are writing. It\n"
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"can be defined either as the object-type name string\n"
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"as defined in the BACnet specification, or as the\n"
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"integer value of the enumeration BACNET_OBJECT_TYPE\n"
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"in bacenum.h. For example if you were writing Analog\n"
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"Output 2, the object-type would be analog-output or 1.\n");
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printf("\n");
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printf(
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"object-instance:\n"
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"This is the object instance number of the object that you are \n"
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"writing to. For example, if you were writing to Analog Output 2, \n"
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"the object-instance would be 2.\n");
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printf("\n");
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printf(
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"property:\n"
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"The property of the object that you are writing. It\n"
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"can be defined either as the property name string as\n"
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"defined in the BACnet specification, or as an integer\n"
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"value of the enumeration BACNET_PROPERTY_ID in\n"
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"bacenum.h. For example, if you were writing the Present\n"
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"Value property, use present-value or 85 as the property.\n");
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printf("\n");
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printf(
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"priority:\n"
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"This parameter is used for setting the priority of the\n"
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"write. If Priority 0 is given, no priority is sent. The BACnet \n"
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"standard states that the value is written at the lowest \n"
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"priority (16) if the object property supports priorities\n"
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"when no priority is sent.\n");
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printf("\n");
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printf(
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"index\n"
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"This integer parameter is the index number of an array.\n"
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"If the property is an array, individual elements can be written\n"
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"to if supported. If this parameter is -1, the index is ignored.\n");
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printf("\n");
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printf(
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"tag:\n"
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"Tag is the integer value of the enumeration BACNET_APPLICATION_TAG \n"
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"in bacenum.h. It is the data type of the value that you are\n"
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"writing. For example, if you were writing a REAL value, you would \n"
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"use a tag of 4.\n"
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"Context tags are created using two tags in a row. The context tag\n"
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"is preceded by a C, and followed by the application tag.\n"
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"Ctag atag. C2 4 creates a context 2 tagged REAL.\n");
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printf(
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"Complex data use the property argument and a tag number -1 to\n"
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"lookup the appropriate internal application tag for the value.\n"
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"The complex data value argument varies in its construction.\n");
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printf("\n");
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printf(
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"value:\n"
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"The value is an ASCII representation of some type of data that you\n"
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"are writing. It is encoded using the tag information provided. For\n"
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"example, if you were writing a REAL value of 100.0, you would use \n"
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"100.0 as the value.\n");
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printf("\n");
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printf(
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"Example:\n"
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"If you want send a value of 100 to the Present-Value in\n"
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"Analog Output 0 of Device 123 at priority 16,\n"
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"send the one of following commands:\n"
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"%s 123 analog-output 0 present-value 16 -1 4 100\n"
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"%s 123 1 0 85 16 -1 4 100\n",
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filename, filename);
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printf(
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"To send a relinquish command to the same object:\n"
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"%s 123 analog-output 0 present-value 16 -1 0 0\n"
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"%s 123 1 0 85 16 -1 0 0\n",
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filename, filename);
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}
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int main(int argc, char *argv[])
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{
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BACNET_ADDRESS src = { 0 }; /* address where message came from */
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uint16_t pdu_len = 0;
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unsigned timeout = 100; /* milliseconds */
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unsigned max_apdu = 0;
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unsigned object_type = 0;
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unsigned object_property = 0;
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time_t elapsed_seconds = 0;
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time_t last_seconds = 0;
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time_t current_seconds = 0;
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time_t timeout_seconds = 0;
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bool found = false;
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char *value_string;
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bool status = false;
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int args_remaining = 0, tag_value_arg = 0, i = 0;
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long property_tag;
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long priority;
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uint8_t context_tag = 0;
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int argi = 0;
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/* print help if requested */
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for (argi = 1; argi < argc; argi++) {
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if (strcmp(argv[argi], "--help") == 0) {
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print_usage(filename_remove_path(argv[0]));
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print_help(filename_remove_path(argv[0]));
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return 0;
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}
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if (strcmp(argv[argi], "--version") == 0) {
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printf(
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"%s %s\n", filename_remove_path(argv[0]), BACNET_VERSION_TEXT);
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printf("Copyright (C) 2014 by Steve Karg\n"
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"This is free software; see the source for copying "
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"conditions.\n"
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"There is NO warranty; not even for MERCHANTABILITY or\n"
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"FITNESS FOR A PARTICULAR PURPOSE.\n");
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return 0;
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}
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}
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if (argc < 9) {
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print_usage(filename_remove_path(argv[0]));
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return 0;
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}
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/* decode the command line parameters */
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Target_Device_Object_Instance = strtol(argv[1], NULL, 0);
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if (bactext_object_type_strtol(argv[2], &object_type) == false) {
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fprintf(stderr, "object-type=%s invalid\n", argv[2]);
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return 1;
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}
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Target_Object_Type = object_type;
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Target_Object_Instance = strtol(argv[3], NULL, 0);
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if (bactext_property_strtol(argv[4], &object_property) == false) {
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fprintf(stderr, "property=%s invalid\n", argv[4]);
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return 1;
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}
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Target_Object_Property = object_property;
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priority = strtol(argv[5], NULL, 0);
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if ((priority < BACNET_MIN_PRIORITY) ||
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(priority > BACNET_MAX_PRIORITY)) {
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priority = BACNET_NO_PRIORITY;
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}
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Target_Object_Property_Priority = priority;
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Target_Object_Property_Index = strtol(argv[6], NULL, 0);
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if (Target_Object_Property_Index == -1) {
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Target_Object_Property_Index = BACNET_ARRAY_ALL;
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}
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if (Target_Device_Object_Instance > BACNET_MAX_INSTANCE) {
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fprintf(stderr, "device-instance=%u - not greater than %u\n",
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Target_Device_Object_Instance, BACNET_MAX_INSTANCE);
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return 1;
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}
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if (Target_Object_Type > MAX_BACNET_OBJECT_TYPE) {
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fprintf(stderr, "object-type=%u - it must be less than %u\n",
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Target_Object_Type, MAX_BACNET_OBJECT_TYPE + 1);
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return 1;
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}
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if (Target_Object_Instance > BACNET_MAX_INSTANCE) {
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fprintf(stderr, "object-instance=%u - not greater than %u\n",
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Target_Object_Instance, BACNET_MAX_INSTANCE);
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return 1;
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}
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if (Target_Object_Property > MAX_BACNET_PROPERTY_ID) {
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fprintf(stderr, "property=%u - it must be less than %u\n",
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Target_Object_Property, MAX_BACNET_PROPERTY_ID + 1);
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return 1;
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}
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args_remaining = (argc - 7);
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/* location of next arg in arg array */
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tag_value_arg = 7;
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for (i = 0; i < MAX_PROPERTY_VALUES; i++) {
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/* special case for context tagged values */
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if (toupper(argv[tag_value_arg][0]) == 'C') {
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context_tag = (uint8_t)strtol(&argv[tag_value_arg][1], NULL, 0);
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tag_value_arg++;
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args_remaining--;
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Target_Object_Property_Value[i].context_tag = context_tag;
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Target_Object_Property_Value[i].context_specific = true;
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} else {
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Target_Object_Property_Value[i].context_specific = false;
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}
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property_tag = strtol(argv[tag_value_arg], NULL, 0);
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tag_value_arg++;
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args_remaining--;
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if (args_remaining <= 0) {
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fprintf(stderr, "Error: not enough tag-value pairs\n");
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return 1;
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}
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value_string = argv[tag_value_arg];
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tag_value_arg++;
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args_remaining--;
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if (property_tag < 0) {
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property_tag = bacapp_known_property_tag(
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Target_Object_Type, Target_Object_Property);
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} else if (property_tag >= MAX_BACNET_APPLICATION_TAG) {
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fprintf(stderr, "Error: tag=%ld - it must be less than %u\n",
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property_tag, MAX_BACNET_APPLICATION_TAG);
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return 1;
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}
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if (property_tag >= 0) {
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status = bacapp_parse_application_data(
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property_tag, value_string, &Target_Object_Property_Value[i]);
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if (!status) {
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/* FIXME: show the expected entry format for the tag */
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fprintf(stderr, "Error: unable to parse the tag value\n");
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return 1;
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}
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} else {
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fprintf(stderr,
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"Error: parser for property %s is not implemented\n",
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bactext_property_name(Target_Object_Property));
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return 1;
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}
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/* Print the written value (for debug) */
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#if 0
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fprintf(stderr, "Writing: ");
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BACNET_OBJECT_PROPERTY_VALUE dummy_opv = {
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.value = &Target_Object_Property_Value[i],
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.array_index = Target_Object_Property_Index,
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};
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bacapp_print_value(stderr, &dummy_opv);
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fprintf(stderr, "\n");
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uint8_t apdu[1000];
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int len = bacapp_encode_application_data(apdu, &Target_Object_Property_Value[i]);
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for(int q=0;q<len;q++) {
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printf("%02x ", apdu[q]);
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}
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printf("\n");
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#endif
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Target_Object_Property_Value[i].next = NULL;
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if (i > 0) {
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Target_Object_Property_Value[i - 1].next =
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&Target_Object_Property_Value[i];
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}
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if (args_remaining <= 0) {
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break;
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}
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}
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if (args_remaining > 0) {
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fprintf(stderr, "Error: Exceeded %d tag-value pairs.\n",
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MAX_PROPERTY_VALUES);
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return 1;
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}
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/* setup my info */
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Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE);
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address_init();
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Init_Service_Handlers();
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dlenv_init();
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atexit(datalink_cleanup);
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/* configure the timeout values */
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last_seconds = time(NULL);
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timeout_seconds = (apdu_timeout() / 1000) * apdu_retries();
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/* try to bind with the device */
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found = address_bind_request(
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Target_Device_Object_Instance, &max_apdu, &Target_Address);
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if (!found) {
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Send_WhoIs(
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Target_Device_Object_Instance, Target_Device_Object_Instance);
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}
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/* loop forever */
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for (;;) {
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/* increment timer - exit if timed out */
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current_seconds = time(NULL);
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/* at least one second has passed */
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if (current_seconds != last_seconds) {
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tsm_timer_milliseconds(
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(uint16_t)((current_seconds - last_seconds) * 1000));
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datalink_maintenance_timer(current_seconds - last_seconds);
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}
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if (Error_Detected) {
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break;
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}
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/* wait until the device is bound, or timeout and quit */
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if (!found) {
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found = address_bind_request(
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Target_Device_Object_Instance, &max_apdu, &Target_Address);
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}
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if (found) {
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if (Request_Invoke_ID == 0) {
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Request_Invoke_ID = Send_Write_Property_Request(
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Target_Device_Object_Instance, Target_Object_Type,
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Target_Object_Instance, Target_Object_Property,
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&Target_Object_Property_Value[0],
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Target_Object_Property_Priority,
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Target_Object_Property_Index);
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} else if (tsm_invoke_id_free(Request_Invoke_ID)) {
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break;
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} else if (tsm_invoke_id_failed(Request_Invoke_ID)) {
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fprintf(stderr, "\rError: TSM Timeout!\n");
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tsm_free_invoke_id(Request_Invoke_ID);
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Error_Detected = true;
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/* try again or abort? */
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break;
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}
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} else {
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/* increment timer - exit if timed out */
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elapsed_seconds += (current_seconds - last_seconds);
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if (elapsed_seconds > timeout_seconds) {
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Error_Detected = true;
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printf("\rError: APDU Timeout!\n");
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break;
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}
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}
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/* returns 0 bytes on timeout */
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pdu_len = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout);
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/* process */
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if (pdu_len) {
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npdu_handler(&src, &Rx_Buf[0], pdu_len);
|
|
}
|
|
|
|
/* keep track of time for next check */
|
|
last_seconds = current_seconds;
|
|
}
|
|
if (Error_Detected) {
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|